Was Shkval intended for a defensive snapshot?

Was Shkval intended for a rapid, possibly nuclear-tipped defensive shot along the bearing of an incoming torpedo?

That was broadly one of the operating concepts discussed for it.

A viewer proposes firing Shkval rapidly along the bearing of an incoming torpedo to force the attacker to maneuver and disrupt its attack. The suggestion includes a possible nuclear warhead. It is accepted as one discussed operating concept, without establishing that it was the weapon's only purpose.